diff --git a/globalserver/client_interface_clone/requirements.txt b/globalserver/client_interface_clone/requirements.txt
index e7cdc0b..fd9e8df 100644
--- a/globalserver/client_interface_clone/requirements.txt
+++ b/globalserver/client_interface_clone/requirements.txt
@@ -1,5 +1,5 @@
 google-pasta==0.1.7
 grpcio==1.24.3
-protobuf==3.10.0
+protobuf==3.15.0
 numpy==1.17.3
 bson==0.5.8